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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (22): 210-212.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

土壤中钠/钙离子比例对水平一维入渗特性影响研究

赵新宇 程东娟   

  • 收稿日期:2010-06-24 修回日期:2010-08-06 出版日期:2010-11-20 发布日期:2010-11-20
  • 基金资助:

    水文水资源与水利工程国家重点实验室开放研究基金

Effect of Ratio of Na+/Ca2+ on Characteristic of One-dimension Horizontal Infiltration

  • Received:2010-06-24 Revised:2010-08-06 Online:2010-11-20 Published:2010-11-20

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摘要：

通过室内不同钠/钙离子比例土壤的水平一维入渗试验，分析了土壤中钠/钙离子比例对水平一维入渗特性的影响。结果表明：随着土壤中钠/钙离子比例的减小，相同入渗时间，土壤的湿润锋、累积入渗量、入渗率增大，入渗结束后，相同湿润深度的土壤含水量增大。以上研究成果为盐碱地合理灌溉，保持水盐平衡提供理论基础。

关键词: 关键词 反相高效液相色谱法, 关键词 反相高效液相色谱法, 火龙果, 有机酸

Abstract:

Through indoor experiment of different ratio of Na+/Ca2+ under one-dimension horizontal infiltration, the effect of ratio of Na+/Ca2+ on infiltration characteristic is analyzed. The rusult shows: with the ratio of Na+/Ca2+ decreaseing, soil wetting front, total infiltration volume and infiltration ratio increases. After infiltration, the soil water content increase in the same distance with the ratio of Na+/Ca2+ decreasing. The research results provide theory proof for irrigating on saline-alkali soil and maintaining water and salt balance.

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